chore: Add a newline formatting configuration and a comment for warning

[returnToInnocence]

Purpose of the PR

• fix the [Summary] Enhance code style warnings in server #2435 's subtask

Main Changes

• Add a newline formatting configuration(via hg-style.xml)
• Add a comment for the IDEA unsupported warning about continuation_indent_size

Verifying these changes

• Trivial rework / code cleanup without any test coverage. (No Need)
• Already covered by existing tests, such as (please modify tests here).
• Need tests and can be verified as follows:
  • xxx

Does this PR potentially affect the following parts?

• Nope
• Dependencies (add/update license info)
• Modify configurations
• The public API
• Other affects (typed here)
  • When you use hugegraph-style.xml for code reformat, this pr mentions changes that will affect the final result

Documentation Status

• Doc - TODO
• Doc - Done
• Doc - No Need

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.28%. Comparing base (47a68f0) to head (89a7708).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2464      +/-   ##
============================================
+ Coverage     63.80%   66.28%   +2.47%     
+ Complexity      829      827       -2     
============================================
  Files           511      511              
  Lines         42622    42622              
  Branches       5947     5947              
============================================
+ Hits          27193    28250    +1057     
+ Misses        12679    11558    -1121     
- Partials       2750     2814      +64     

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